The Type 3500 Safety Relief Valve is a total lift full nozzle design valve. It has excellent accumulation, blowdown and repeatable reseating characteristics. It is suitable for gases, liquids and vapour applications. The Type 3500 Safety Relief Valves are designed to have a short simmer, then to open rapidly to the full open position, and to re-seat at a controlled pressure. When the valve is in its fully lifted position, the discharge area is controlled by the bore of the nozzle, which ensures that flow calculations for various mediums can be reliably made. Valves are supplied in sizes 1" x 2" through to 8" x 10", orifices D through to T and can be manufactured in Cast Steel, Stainless Steel and any other materials to suit the application, with flanges are to customer requirements. Valves can also be supplied with either a packed or open lever lifting device, limit switch to indicate opening and closing of the valve, governing ring to limit adjustment of the spring to the set point, for ease of re-setting, and balanced bellows for when there is a variable back pressure.
Broady 3500 Safety Relief Valve
Sizes: 1” x 2” through to 8” x 10”, flanged to recognized standards.
Orifice: API orifice designation from D to T.
Standards: ASME Section VIII, Division 1: “UV” stamp - approval (gas only). Designed, manufactured and tested to API 520, 526 and 527. PED: Cat IV - CE Marked
Connections:
Flanged ANSI 150 Inlet x Flanged ANSI 150 Outlet
Flanged ANSI 300 Inlet x Flanged ANSI 150 Outlet
Materials:
Body & Bonnet: Cast Steel (CS) (to ASME SA216 WCB) or Stainless Steel (SS) (to ASME SA351 CF8M)
Nozzle and Seat: 316 Stainless Steel
Disk: 316 Stainless Steel
Spring: 316 Stainless Steel
Joints: PTFE
Medium: Gas, liquid and vapour applications
Note: Other connection and material options are available on request as per the manufacturer's datasheet. The maximum set pressure is specified in API 526 and is temperature dependant.
STOCK SIZES
Flowstar keep the following types and sizes in both Carbon Steel and Stainless Steel.
3511D - 1" Class 150 x 2" Class 150
3531D - 1" Class 300 x 2" Class 150
3511E - 1" Class 150 x 2" Class 150
3531E - 1" Class 300 x 2" Class 150
3511F - 1.1/2" Class 150 x 2" Class 150
3531F - 1.1/2" Class 300 x 2" Class 150
3511G - 1.1/2" Class 150 x 3" Class 150
3531G - 1.1/2" Class 300 x 3" Class 150
3511H - 1.1/2" Class 150 x 3" Class 150
3531H - 1.1/2" Class 300 x 3" Class 150
3511J - 2" Class 150 x 3" Class 150
Flowstar keep the following types and sizes with UK castings in both Carbon Steel and Stainless Steel.
3511D - 1" Class 150 x 2" Class 150
3531D - 1" Class 300 x 2" Class 150
3511E - 1" Class 150 x 2" Class 150
3531E - 1" Class 300 x 2" Class 150
Broady 3500 Safety Relief Valve Brochure
Broady 3500 Safety Relief Valve Datasheet
